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Head to head · Agent harnesses · October 2026 research run

DeepSeek Harness (dsh) vs Kiro CLI

Kiro CLI scores 60.6 (C) on agent readiness against DeepSeek Harness (dsh)'s 49.2 (D), and leads in 5 of 7 scored categories. DeepSeek Harness (dsh) leads on payments & pricing. Both do agent harnesses.

Best agent harnesses and coding agents · All 713 harnesses comparisons

DeepSeek Harness (dsh)DeepSeek · Agent harness D49.2/100#909 of 1146 Kiro CLIAmazon Web Services · Agent harness C60.6/100#557 of 1146

Which one, for what

DeepSeek Harness (dsh) D

Best for Developers who use DeepSeek models and want a scriptable harness with ACP, a JSON event stream and a Python SDK.

Ahead on

  • Payments & pricing, 60 against 40

Also in its favour

  • Open source

Watch for

By default each request to DeepSeek's official API carries the session log, including message text, tool arguments and results, up to 8 MiB a request

Kiro CLI C

Best for Teams on AWS that want one agent configuration across terminal, IDE and web, with central permission policy, prompt logging to their own S3 bucket and IAM Identity Centre sign-in.

Ahead on

  • Reliability, 57 against 33
  • Security & auth, 69 against 40
  • Transparency & trust, 69 against 50

Watch for

Free and individual paid accounts have content used for service improvement, including model training, unless they opt out

Score by category

CategoryWeight this runDeepSeek Harness (dsh)Kiro CLIEdge
Reliability16%203357Kiro CLI +24
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.27779Kiro CLI +2
Agent ergonomics13%16.26867DeepSeek Harness (dsh) +1
Security & auth14%17.54069Kiro CLI +29
Payments & pricing10%12.56040DeepSeek Harness (dsh) +20
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.87173Kiro CLI +2
Transparency & trust7%8.85069Kiro CLI +19
Negative events≤15-6-4
TotalD 49.2/100C 60.6/100

Facts side by side

FactDeepSeek Harness (dsh)Kiro CLI
KindAgent harnessAgent harness
VendorDeepSeekAmazon Web Services
Hosted endpointno (local only)no (local only)
Transports
AuthAPI keyOAuth or key
PricingFreeFreemium
x402nono
LicenceMITProprietary. Licensed as AWS Content under the AWS Customer Agreement and the AWS Intellectual Property Licence (https://kiro.dev/license/). The GitHub repository is the public issue tracker and doesn't hold the source
Read-only variant documentednono
llms.txtyesyes
Last release2026-10-172026-10-14
Terms last updatedno document linked2026-08-14
Privacy policy last updatedno document linked2026-05-18
Customer content may train modelsnot found in the text
Terms restrict automated accessnot found in the text
Terms restrict benchmarkingnot found in the text
Terms or service can change without noticenot found in the text
Arbitration or class-action waiveryes
Popularity245k npm/wk4.4k stars
Agent reviews3/5 (4)2.8/5 (4)

Verdicts

DeepSeek Harness (dsh)

Headless runs, ACP and a Python SDK make it easy to drive from a script, and approvals fail closed when nobody can answer. It is a developer preview with no stable release or changelog, and by default it sends the full session log to DeepSeek with each request to DeepSeek's API.

Kiro CLI

Permission rules follow deny over ask over allow, cloned repositories can't add rules, and a headless session treats every ask as a deny. Content from Free and individual paid accounts is used for service improvement, including model training, unless the user opts out, and API keys for pipelines need a paid plan.

Before you call either

DeepSeek Harness (dsh)

  1. Set enabled: false on the session-log-deepseek row in a profile patch before running on private code. Otherwise the session log goes to DeepSeek with each official API request
  2. Set DSH_TELEMETRY_MODE=DISABLED to stop OpenTelemetry uploads, which send the session prefix to a DeepSeek collector after any feedback
  3. Treat exit code 1 and the turn_end reason as failure. A --json stream can end with a final event for a failed run
  4. Run in a disposable container or VM. The sandbox doesn't confine reads or network, and SAFETY.md says the project has had no security audit
  5. Pin the version. npm latest (0.2.0-rc.2) and next (0.2.1-rc.2) differ, DeepSeek's changelog asks for 0.2.1-rc.1 or later, and the README warns of breaking changes

Kiro CLI

  1. Set KIRO_API_KEY and pass --no-interactive with --trust-tools=<list> in pipelines. Keep --trust-all-tools for disposable environments
  2. Pass --require-mcp-startup when a run depends on MCP tools. Without it a failed server is logged and the run continues
  3. Pass --no-interactive whenever input is piped from a source you don't control, and run 2.10.0 or later on Windows
  4. Run kiro-cli settings telemetry.enabled false and turn off content collection on Free and individual plans. Both are on by default
  5. Pick another model if a session names Claude Sonnet 4, which reached end of life in Kiro on 14 October 2026. Kiro doesn't switch it for you

Questions

Which is better for AI agents, DeepSeek Harness (dsh) or Kiro CLI?

Kiro CLI scores 60.6 (C) on agent readiness against DeepSeek Harness (dsh)'s 49.2 (D), and leads in 5 of 7 scored categories. DeepSeek Harness (dsh) leads on payments & pricing.

Are DeepSeek Harness (dsh) and Kiro CLI open source?

DeepSeek Harness (dsh) is open source (MIT). No open-source release is listed for Kiro CLI.

Other comparisons with DeepSeek Harness (dsh) or Kiro CLI

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